"AMD has announced its support of Open GL 4.1 on Microsoft and Linux platforms in its latest driver release for a number of its graphics cards. The driver release, available on the AMD website for the ATI FirePro, ATI FireGl and AMD Radeon cards, will support OpenGL 4.1 for Microsoft's Windows 7, Vista, XP, as well as Linux."

"Documentation was released ages ago, and they've got a couple of developers working on the open source driver. This one is the proprietary blob, though. The one you want to use if you need serious OpenGL performance.